Home / 726,490.20-1,087,661.70-705,754.20

Finding the Fourth Proportional to 726,490.20, 1,087,661.70 and 705,754.20

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Solution

The fourth proportional to 726,490.20, 1,087,661.70 and 705,754.20 is: 1,056,616.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,490.20 : 1,087,661.70 = 705,754.20 : x
  2. Step 2: Convert to fraction form
    726,490.20/1,087,661.70 = 705,754.20/x
  3. Step 3: Cross multiply
    726,490.20x = 1,087,661.70 × 705,754.20
  4. Step 4: Simplify right side
    726,490.20x = 767,621,812,954.14
  5. Step 5: Solve for x
    x = 767,621,812,954.14/726,490.20
  6. Step 6: Final answer
    x = 1,056,616.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.